Add coverage reporting #107
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Setting the environment variable `COVERAGE=1` allows us to turn coverage measurements on. This produces a number of auxiliary gcno and gcda files which can then be converted into coverage reports. I know line coverage and branch coverage is not a perfect metric, but it might get us some more visibility into where more tests might be needed.
Added coverage files to `clean` and `coverage` target to generate HTML report of coverage.
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Setting the environment variable
COVERAGE=1allows us to turn coverage measurements on. This produces a number of auxiliary gcno and gcda files which can then be converted into coverage reports.make coveragethen allows us to generate HTML reports.I know line coverage and branch coverage is not a perfect metric, but it might get us some more visibility into where more tests might be needed.